Akira Yamanaka (山中明, Yamanaka Akira, September 2, 1946 – August 7, 2011), better known as Joe Yamanaka (ジョー山中), was a Japanese singer and actor. He is known for both his work with Flower Travellin' Band and as a solo musician; singing at a vocal range of three octaves. As an actor, he appeared in many television shows and movies, such as Blackmail Is My Life (1968), Zatoichi (1989) and Deadly Outlaw: Rekka (2002).

He is also recognized for 20 years of charity and volunteer work with the Japan International Cooperation Agency and flew around the world helping those in poor or war-torn conditions; visiting more than 30 countries including Afghanistan, Myanmar, Bosnia, numerous sovereign states in Africa, China, Ukraine (including Chernobyl), North Korea, Vietnam, Iraq, and Brazil. While doing aid work in Jamaica, he met local musicians and later became involved in reggae music. His aid work was a personal inspiration to help those who were growing up in similar conditions that he had experienced as a child.